The RPI Pro is a professional-grade audio streamer/bridge meticulously engineered for high-end audio systems and digital sources. At its heart lies the Raspberry Pi Compute Module 4 (CM4), integrated with audiophile-grade hardware design and a deeply optimized system architecture. While offering comprehensive support for popular streaming protocols including Roon Bridge, HQPlayer NAA, UPnP, AirPlay, and Squeezelite, it achieves complete purification of data, clock, power, and signal transmission, establishing a truly pure, stable, and high-quality core for your digital music playback.
1. Raspberry Pi CM4-Based Architecture
RPI Pro utilizes the Raspberry Pi Compute Module 4 (CM4), delivering native USB output without PCIe conversion, reducing signal loss and interference. Compatible with popular systems like Volumio, Ropieee, Moode, and PiCorePlayer. Pre-installed with Ropieee for easy setup—stream directly from your phone to your DAC with superior quality compared to Bluetooth.
2. High-Precision Clock System
- Equipped with an ultra-low phase-noise SC-cut OCXO (-100dBc/1Hz typ.) as the master clock reference.
- Skyworks Si5381 PLL generates synchronized clock signals for the CM4, network controller, and USB interface.
- Features a 10MHz external clock input (BNC) for advanced reference clock integration, with automatic switching.
3. Native USB Output with Isolation
USB 2.0 port is directly driven by the CM4 CPU, bypassing conversion chips. Enhanced with a high-speed isolation IC (3165) and dedicated power supply for studio-grade audio transmission. Ensures stable playback of high-resolution PCM and DSD files, delivering uncompromising fidelity.
4. High-Performance Network Control
Dual RJ45 and SFP ports enable fiber-optic network isolation, significantly reducing electrical noise and improving signal integrity.
5. Precision DC Power Supply
- 30VA toroidal transformer with EMI filtering.
- High-speed rectification and multi-stage filtering with premium electrolytic capacitors.
- Three independent DC-DC power circuits optimized for high-speed digital performance and microvolt-level low noise.